MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 454 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
High air-fuel ratio in gas turbines |
| A. | Increases power output |
| B. | Improves thermal efficiency |
| C. | Reduces exhaust temperature |
| D. | Do not damage turbine blades |
| Answer» D. Do not damage turbine blades | |
| 452. |
Adiabatic compression is one in which |
| A. | Temperature during compression remains constant |
| B. | No heat leaves or enters the compressor cylinder during compression |
| C. | Temperature rise follows a linear relationship |
| D. | Work done is maximum |
| Answer» C. Temperature rise follows a linear relationship | |
| 453. |
In multistage compressor, the isothermal compression is achieved by |
| A. | Employing inter-cooler |
| B. | By constantly cooling the cylinder |
| C. | By running compressor at very slow speed |
| D. | By insulating the cylinder |
| Answer» D. By insulating the cylinder | |
| 454. |
A simple turbojet engine is basically |
| A. | A propeller system |
| B. | Gas turbine engine equipped with a propulsive nozzle and diffuse |
| C. | Chemical rocket engine |
| D. | Ramjet engine |
| Answer» C. Chemical rocket engine | |